How to build a healthy gut using the latest microbiome science | Dr Suzanne Devkota

The human microbiome functions as a complex, co-evolved ecosystem where diversity serves as the primary marker of health. Rather than relying on broad-spectrum probiotics, which often fail to colonize established gut communities, optimal gut function depends on consistent intake of microbial accessible carbohydrates (MACs) found in diverse plant foods. These fibers fuel specific bacteria that produce short-chain fatty acids like butyrate, which are essential for maintaining gut barrier integrity and dampening systemic inflammation. Dr. Suzanne Devkota, a microbiome researcher at Cedars-Sinai, emphasizes that while early-life exposures significantly shape this microbial fingerprint, active surveillance through dietary fiber remains the most effective tool for long-term health. Because the gut environment is highly individualized, evidence-based management focuses on supporting native microbial populations through diet rather than attempting to manipulate the system with unproven, transient supplement regimens.